John desmond



UNITED STATES? PATENT OFFICE.

JOHN DESMOND, OF NEW YORK, N. Y.

STEAM-INJECTOR.

SPECIFICATION forming part of Letters Patent No. 626,150, dated May 30, 1899. Application filed January 28,1898. Serial No. 668,251. (ModeL) To all whom it may concern:

Be it known that'I, JOHN DESMOND, of New York, in the county of New York and State of New York, have invented certain new and usefullmprovements in Steam-Injectors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention contemplates certain newthe shell or casing; a, the steam-inlet; a, the.

water-inlet; a the outlet to theboiler, and a the opening for the overflow. This latter opening is formed at the end of an exteriorlythreadedbo ss a of casing A.

B is a valve for normally closing the opening a It is composed of a disk I), having a central boss I), which is interiorly threaded to receive a screw b 1) fits in a hole or opening in the lower end of an arm 19 and is securely held by screw 19 This arm b is pivoted at its upper end at b to a-lug b of casingAand is provided with a rounded thickened portion b which acts as a weight. The object of thus weighting the arm b is to insure the seating of valve B. The latter normally occupies a truly vertical position and closes the outlet through opening a By removing screw b the disk can be easily removed from arm 17 and if worn or damaged a new one may be substituted.

A removable casing O, screwed on boss of, incloses the valve B. It is open at its outer lower end to allow of the passage of the overflow and may be interiorly threaded for the attachment thereto of a pipe or hose-coupling. By removing this casing access can be had to the valve and its adjuncts.

The outer end of boss D is the steam-inlet tube, d the lifting-tube, and d the delivery-tube.

The combining-tube E is located in chamber e. Thischamber is known as the overflow-chamber, and over the outlet-opening 01. thereof is positioned the valve B. This combining-tube is made up of a series of sections 6, e, and 6 formed with coincident openings, each havinga gradual conical taper toward the delivery-tube, preserving the con-' ical bore requisite in combining-tubes of steam-injectors. These several sections are supported within an open-work shell e, which is provided with partitions e having threaded openings to accommodate the threads on the exterior of said sections. The shell 6 may itself be composed of a series of sections removably united. Lateral flanges e of the several sections e e c are designed to fit against the partition e The shell 6 extends the full length of the chamber and may be removed'by Withdrawing the delivery-tube after an end plug 6 is unscrewed from the casing. By thus mounting the series of sections within the shell e a small space is left between said sections and also between the upper and lower sections and the ends of the adjacent tubes, the lifting and delivery tubes. Thus I provide four openings to accommodate thespill and also to allow the liquid contents of the chamber e to be taken up at any one or more of these several openings.

As is well known in the art, in the operation of a steam-injector the amount of water in the overflow-chamber depends upon the steam-pressure. Under certain pressure this chamber will be nearly filled with water, while under a heavier head of steam it will be prac- .tically empty.

While I have found that a steam-injector having a combining-tube constructed as described possesses mauy advantages, yet it has been found that a combining-tube formed with a plurality of openings is of special ad vantage when used for feeding a lubricant to aboiler, such lubricant being fed directly into the chamber 6. In a concurrent application for patent filed January 15, 1898, Serial No. 666,799, I have shown and describeda lubricator thus combined withfa steam-injector.

' The advantages of my invention will be apparent to those skilled in the art to which it a-ppertains, and it will be specially observed that by forming a combining-tube as stated the injector will have increased efficiency.

I claim as my invention In a steam-injector having a removable delivery-tube and an end plug in line therewith, a combining-tube composed of a shell resting on said delivery -tnbe and having spaced-apart openings throughout its length, partitions between said openings having central threaded openings therein, and a series of tubular sections havingexterior threads engaging said threaded openings of said partitions, the bores of said tubnlarseetions being gradually tapered toward the deliverytube, and external flanges on said tubular sections designed to bear on said partitions, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

JOHN DESMOND.

Vitnesses:

B. Z. SUssHoLz; SEBASTIAN SANDER. 

